Mailosaur vs Signadot

See how their public offers line up before you choose your own position. Prices stay in the currency, billing schedule, and charged unit each vendor publishes.

Mailosaur

See full pricing history

USD · US · source: mailosaur.com

Plan	Pricing	Charged by	Offer type
personal — annual billing	USD 20 monthly · USD 20 / month with annual commitment From $ 20 per month , billed annually	Flat · per month , billed annually	Standalone · Starting at

Signadot

See full pricing history

USD · US · source: www.signadot.com

Plan	Pricing	Charged by	Offer type
Starter	Free Free	Usage	Standalone · Free
Business Highlighted	USD 250 monthly $250 /month 10% discount for yearly subscription	Flat · /month	Standalone · Fixed
Enterprise	Contact sales Custom	Usage	Standalone · Contact sales

What each plan includes

Feature names follow each vendor’s own pricing page, so verify the wording before treating them as exact equivalents.

Mailosaur

personal — annual billing

Highlights Users: Includes 1 user With support for up to 3 users

Included
Highlights Inboxes: 1 inbox (with unlimited email addresses)

Included
Highlights Unique domain name per inbox: Each inbox has a unique domain name

Included
Highlights Inbound emails: From 15,000 inbound emails/month

Included
Highlights Email compatibility testing: Included
Highlights API for test automation: Included
Highlights Forward individual emails to external addresses: Included

Signadot

Starter

Highlights Sandboxes created per month: 50

Included
Highlights Test invocations per month: 100

Included
Highlights Concurrent devboxes: 10

Included
Highlights Kubernetes cluster: 1

Included
Highlights Resource Plugin: 1

Included
Highlights Local Development and Debugging: Included
Highlights AI Powered Contract Testing: Included
Highlights Pull Request Previews: Included
Highlights Run E2E Tests pre-merge: Included
Highlights Community Slack Support: Included

Business

Highlights Sandboxes created per month: 100

Included
Highlights Concurrent Devboxes: 15

Included
Highlights Test Invocations per Month: 200

Included
Highlights Everything in free plus: Included
Highlights Kubernetes clusters: 3

Included
Highlights Resource plugins: 5

Included
Highlights Community Slack and Email Support: Included

Enterprise

Highlights Custom sandboxes, Test invocations & Concurrent devboxes: Included
Highlights Unlimited Clusters and Plugins: Included
Highlights Multi-cluster RouteGroups: Included
Highlights SSO Integration & SOC2 Report: Included
Highlights Premium Support (Dedicated Slack): Included
Highlights Custom Contracts and Multi-year Discounts: Included
Highlights Influence on Product Roadmap: Included
Highlights Dedicated white-glove Pilot: Included

How their prices changed

Each date shows when a public price was observed, not when it took effect. An archived region or currency can differ, so a currency change is not necessarily a price increase.

Mailosaur

August 27, 2026
Official pricing page
- personal — annual billing: USD 20 monthly · USD 20 / month with annual commitment

Signadot

September 21, 2026
Official pricing page
- Starter: Free
- Business: USD 250 monthly
- Enterprise: Contact sales
August 27, 2026
Official pricing page
- Starter: Free
- Business: USD 250 monthly · USD 225 / month with annual commitment
- Enterprise: Contact sales